Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Fin w/spade rudder
Rigging Type: Fractional Sloop
LOA: 10.55 m
LWL: 8.40 m
S.A. (reported): 50.07 m²
Beam: 2.88 m
Displacement: 4,740 kg
Ballast: 2,070 kg
Max Draft: 1.80 m
Construction: FG
Ballast Type: Lead
First Built: 1980
Last Built: 1985
# Built: 70
Builder: Helmsman Yachts, Saxarplast (SWE)
Designer: Håkan Södergren

KLSC Leaderboard

KLSC Leaderboard

Auxiliary Power/Tanks (orig. equip.)

Make: Volvo Penta
Type: Diesel

Sailboat Calculations

S.A. / Displ.: 18.10
Bal. / Displ.: 43.67
Disp: / Len: 222.86
Comfort Ratio: 27.32
Capsize Screening Formula: 1.73
S#: 2.56
Hull Speed: 7.03 kn
Pounds/Inch Immersion: 930.59 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 11.75 m
J: 3.88 m
P: 13.00 m
E: 4.20 m
S.A. Fore: 22.78 m²
S.A. Main: 27.30 m²
S.A. Total (100% Fore + Main Triangles): 50.08 m²
S.A./Displ. (calc.): 18.11
Est. Forestay Length: 12.37 m

Sailboat Links

Designers: Håkan Södergren
Builders: Finngulf Yachts
Helmsman Yachts
Associations: IOR 3/4 ton
Download Boat Record:


First sold by Posiedon Yachts and built in Sweden (boats with the hull number 1-62). Some time later the molds were aquired by Finngulf Marine(FIN) where at least 10 more were built with some modifications to the deck and interior.(FINNGULF 34)